I got home the other day to a massive leak at my pump, had 1.5 inches of water in my shed. Basically, the union piece screwed into the pump outlet doesn’t seem to be holding anymore. If you screw it in, at some point it just won’t tighten anymore and will just get loose again. The threads seem fine on both the piece and the union, and I even bought a replacement piece and when screwing it in it’s the same problem. A guy came to have a look, he thinks maybe the hole itself got a bit warped because of heat. But he’s not sure as my pump is only like 3 years old, I didn’t have significant air bubbles showing, though I did have a bit. I don’t want to replace a pump if I don’t have to, not sure if there’s a good way to verify if that’s really the problem or if there’s a way to fix as opposed to replacing. Pictures attached.
Pump outlet leaking
- Thread starter tm8747a
- Start date
The connection into the pump housing is a straight thread and relies on the seal ring to be held in compression by the threads. If the pump threads are damaged or possibly warped it will not be possible for the thread to hold.
You may want to talk to a pump repair shop if they have a way to measure the threads.
You may want to talk to a pump repair shop if they have a way to measure the threads.
If both the old part and the new have the same issue, unfortunately that only leaves the pump as the problem.